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Fact check: Polio caused by virus, combatted with vaccine

It has been more than 110 years since researchers determined that a virus causes polio and almost 70 years since vaccines began protecting from it.

United statesYvonne maldonadoJohns hopkinsKarl landsteinerErwin popperCenters for diseaseWorld health organizationAssociated pressCollege of physicians philadelphiaMilestones in early poliomyelitis researchStanford universityLead arsenateSouth americaDisease controlWorld warWorld health

Polio Elimination Due to Vaccination, Not End of Pesticide Use

Polio Elimination Due to Vaccination, Not End of Pesticide Use
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City ofUnited kingdomQueen maryUnited statesNew yorkWorld health organizationAl qahirahEnvironmental protection agencyDistrict of columbiaAlbert sabinElena conishasdocumentedJosephj espositoJonas salkCenters for diseaseRobert wood johnson foundationUniversity of california berkeley